Bottle neck construction



Noir.. 2, 41937. s, W BURNHAM '2,097,912

BOTTLE NECK CONSTRUCTION Filed June 8, 1934 Patented Nov. 2, 1937UNiTEDsTArEs PATENT OFFICE Stanley Ward Burnham, Elizabeth, N. J.,assignor to Merck &`Co., Inc., Bahway, N. J., a corporation of NewJersey Application June 8, 1934, Serial No. 729,686

2 claims. ((1215-31) This invention relates to certain new and-usefulimprovements in ,bottle neck constructions. The primary object of theinvention isto provide improvements in connection with bottle 5 neckconstructions wherein the pouring lipthereof is designed for thedropping of uid from a bottle and .to eliminate the flowing of thevfluid around the pouring mouth or lip and over the exterior of thebottle neck, the inner face of the pouring lip being inclined outwardly'toward the pouring edge for the reduction of aqueous tension before theliquid reaches the discharge edge of the pouring lip.

A further object of the invention is to provide a bottle neckconstruction of the foregoing character wherein the neck is providedwith an externally threaded base portion of a diameter at least as greatlas or greater than the diameter of the pouring lip to facilitate theattachment of a cover-all screw cap that freely passes over the pouringlip for engagement with the neck threads, the cap containing a gasketfor sealing contact with the pouring lip.

With theabove and other objects in view that'l will become apparent asthe nature of the invention is better understood, the same consists inthe novel form, combination and arrangement of parts hereinafter morefully described, shown A Figure 3 is an enlarged fragmentary longitudi-A40 nal sectional view of the bottle neck showing the threaded annularbase portion of the -neck having a diameter 'slightly larger .than thediameter of the pouring neck with cover-all cap in 'threaded engagementwith the threaded portion of the neck; and y l Figure 4 is. afragmentary sectional view of the bottle in tilted or pouring positionand illustrating the flowing of the liquid contents of the bottle bydrops with a drop escaping the pouring lip and out of contact with theexteriorl or annular surface of the pouring lip.

Referring more in detail to the accompanying drawing. the ,referencecharacter 5 designates the bottle of any preferred design and saidbottle is 'provided' with a reduced neck 6. 'I'he bate of the neck 6 isexteriorly threaded as at l and the bottle neck 6 at the outer end ofthe threaded base 'l is providwed with an angle shoulder 8.

A pouring lip 9 is formed at the upper terminalend of the neck 6 and isconnected to 5 Y the threaded base 1 at the angle shoulder 8 by' vmeansof the reduced neck portion I0. The upper upon the bottle neck 6,.

The cap I4 hasan annular lskirt I5 that is 'threaded adjacent itsifreeedge as at I6 for threaded engagement with'thethreaded base 1 20 of thebottle neck. The )sealing gasket I'I-is interw posed between the pouringlip 9 and cap I4.

It will be observed that the cover-allca'p I4 freely passes over thepouring edge I3 of the pouring lip 9 to pres'ent the threaded open endI6 25 thereof for engagement with the threaded base I of the neck 6.While the edge i3 of the pouring lip 9 is illustrated in Figure 3 asbeing slightly spaced from the annular skirt I5 of the cover-all cap I4and of a diameter slightly less than .the 30- threaded base' I of theneck, it is to be understood that the diameters of the pouring edge andthreaded base may be substantially equal and thesame resultsaccomplished.

' The feeding of the liquid contents from the 35 bottleby drops isillustrated in Figure 4, the inner and upper inclined surface II of thepouring lip 9 relieveing aqueous tension and permitting a smooth andeven ow of the liquid contents while the outer inclined surface I2 orprescription 40 finish of the pouringlip prevents the flow of the liquidcontents over the outer surface of the bottle neck and cooperates withthe inner and upper inclined surface I I in producing well formed dropsthat leave. the pouring lip from the edge 45 I3 thereof. An importantfeature of this invention is the combination of thepouring lip 9 and thethreaded base 'l of the bottle neck and especially their particularrelation which permits the placement ofthe cover-all cap upon the bottle50 neck with a secure threaded connection between the cap and bottleneckthat is spaced from the pouring lip. Y.

From the above detailed description of the invention, it is believedthat the construction and 55 use thereof will at once be apparent vandwhile there is herein shown and described the preferred embodiment ofthe invention, it is nevertheless to be understood that minor changesmay be made therein without departing from the spirit and scope of theinvention as claimed.

Iclaimz- 1. A bottle-neck construction having a pouring lip co-extensivewith the entire circumIer-i ence of the bottle neck formed by anupwardly and outwardly inclined inner face and a downwardly and inwardlyinclined outer face,v and a well dened horizontally-spaced pouring'ledgebetween the upper ends of said faces and forming an acute angulardropping edge with said outer face.

2. A bottle-neck construction having a poux'- ing lip co-extensive vwiththe entire circumference of the bottle neck, and'formed by an upwardlyand outwardly inclined inner face and a downwardly and inwardly inclinedouter face. and a well deilned horizontally-spaced pouring ledge betweenthe upper ends of said faces and forming an acute angular dropping edgewith said outer face; and having, in combination, a threaded base on theneck, av'threaded cover-all cap having its closed end engaged with thehorizontally spaced pouring ledge substantially throughout its entirearea, and threaded at its open end for engagement with the threaded baseof the neck, the said pouring llip being of a diameter I not greaterthan the diameter of the threaded base, and the inner side walls of thecapbeing free from contact with the downwardly and inwardly inclinedportions of the outer tace of the botti neck.

STANLEY WARD BURNI A@

